/Engine/Source/Runtime/RHI/Public/DynamicRHI.h
FlushType: Flush RHI Thread.
virtual void RHIUnlockBuffer ( [FRHICommandListBase](API\Runtime\RHI\FRHICommandListBase) & RHICmdList, [FRHIBuffer](API\Runtime\RHI\FRHIBuffer) * Buffer )